Add Google Drive integration for backup (#134576)

* Add Google Drive integration for backup

* Add test_config_flow

* Stop using aiogoogle

* address a few comments

* Check folder exists in setup

* fix test

* address comments

* fix

* fix

* Use ChunkAsyncStreamIterator in helpers

* repair-issues: todo

* Remove check if folder exists in the reatuh flow. This is done in setup.

* single_config_entry": true

* Add test_init.py

* Store into backups.json to avoid 124 bytes per property limit

* Address comments

* autouse=True on setup_credentials

* Store metadata in description and remove backups.json

* improvements

* timeout downloads

* library

* fixes

* strings

* review

* ruff

* fix test

* Set unique_id

* Use slugify in homeassistant.util

* Fix

* Remove RefreshError

* review

* push more fields to the test constant

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Co-authored-by: Joostlek <joostlek@outlook.com>